FeaturedPhysics

The Physics Philes, lesson 77: Return of Hooke’s Law

Now that we have some of the basics of periodic motion down, we can start talking about simple harmonic motion. I need to emphasize that this is just the beginning of simple harmonic motion – SHM for short. This section goes on for a while. But it’s important, as we’ll …

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FeaturedPhysics

The Physics Philes, lesson 69: Hooke’s Law, Line, and Sinker

The past couple of weeks we’ve discussed the different types of stresses and strains that can act on an object. In that discussion I brought up a concept called Hooke’s law. Remember? If the stress is small enough, the stress and strain will be proportional. Well, I’m finally going to …

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FeaturedPhysics

The Phyisics Philes, lesson 67: I-Beam, You-Beam, We-All-Beam for…Physics!

So far in our discussion of equilibrium and elasticity we’ve focused solely on rigid bodies. But real life isn’t composed of only rigid bodies. There are squishy things and stretchy things. How on Earth are we supposed to deal with those? We need to talk about stress and strain. Stress …

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